30007172732 has 48 divisors (see below), whose sum is σ = 55934323200. Its totient is φ = 14054884800.

The previous prime is 30007172731. The next prime is 30007172749. The reversal of 30007172732 is 23727170003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30007172731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1449857 + ... + 1470407.

It is an arithmetic number, because the mean of its divisors is an integer number (1165298400).

Almost surely, 2^30007172732 is an apocalyptic number.

It is an amenable number.

30007172732 is a deficient number, since it is larger than the sum of its proper divisors (25927150468).

30007172732 is a wasteful number, since it uses less digits than its factorization.

30007172732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20906 (or 20904 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 32.

The spelling of 30007172732 in words is "thirty billion, seven million, one hundred seventy-two thousand, seven hundred thirty-two".